What is the role of indexing in a data warehouse?
Correct Answer: Indexing helps in faster data retrieval in a data warehouse.
- Step 1: Understand that a data warehouse stores a large amount of data.
- Step 2: Know that users often need to search or retrieve specific data from this large dataset.
- Step 3: Realize that searching through all the data can take a long time without help.
- Step 4: Learn that indexing is like creating a shortcut or a map to find data quickly.
- Step 5: Understand that when you index data, it organizes it in a way that makes searching faster.
- Step 6: Conclude that indexing improves the performance of queries, allowing users to get results more quickly.
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